Current Conditions
Thornhill, Ontario
Wind
NNW 14 mph22 km/h
Humidity
68%
Cloud Cover
26%
As of Wednesday, July 29, 2026 at 6:49 AM EDT
Today's Outlook
Day
Mostly clear and warm, with a high of 78°F25°C and morning low of 66°F19°C. Breezy from the NNW at 14 to 15 mph23 to 24 km/h.
Night
Mostly clear, with a low around 65°F18°C. Breezy from the NNW at 13 mph21 km/h.
7-Day Forecast
| Day | Condition | High (°F) | Low (°F) | Precip (mm) | Cloud Cover (%) | Wind (mph) | |
|---|---|---|---|---|---|---|---|
| WednesdayJul 29 | Clear | High 78°F25°C | Low 65°F18°C | Precip 0 in0 mm— | Cloud 19% | Wind NNW 14 mph22 km/h | Wednesday: Mostly clear and warm, with a high of 78°F25°C and morning low of 66°F19°C. Breezy from the NNW at 14 to 15 mph23 to 24 km/h. Wednesday Night: Mostly clear, with a low around 65°F18°C. Breezy from the NNW at 13 mph21 km/h. |
| ThursdayJul 30 | Clear | High 82°F28°C | Low 61°F16°C | Precip 0 in0 mm— | Cloud 6% | Wind NNW 9 mph14 km/h | Thursday: Mostly clear and warm, with a high of 82°F28°C and morning low of 65°F18°C. Breezy from the NNW at 8 to 10 mph13 to 17 km/h. Thursday Night: Mostly clear, with a low around 61°F16°C. Breezy from the NNW at 9 to 12 mph15 to 19 km/h. |
| FridayJul 31 | Partly Cloudy | High 83°F28°C | Low 59°F15°C | Precip 0 in0.1 mm5% | Cloud 49% | Wind WSW 5 mph8 km/h | Friday: Partly cloudy and warm, with a high of 83°F28°C and morning low of 65°F19°C. Breezy from the SSW at 5 to 7 mph8 to 11 km/h. Friday Night: Mostly cloudy, with a low around 59°F15°C. Light wind from the WNW around 5 mph9 km/h. |
| SaturdayAug 1 | Light Rain | High 79°F26°C | Low 69°F20°C | Precip 0.1 in2.5 mm42% | Cloud 96% | Wind NE 4 mph7 km/h | Saturday: Overcast and warm, with a high of 79°F26°C and morning low of 70°F21°C. Light wind from the E around 4 mph7 km/h. 35% chance of drizzle throughout the day. Humid. Saturday Night: Overcast, with a low around 69°F20°C. Light wind from the N around 4 mph7 km/h. 42% chance of light rain throughout the night. |
| SundayAug 2 | Light Rain | High 74°F23°C | Low 66°F19°C | Precip 0.48 in12.2 mm70% | Cloud 71% | Wind N 6 mph10 km/h | Sunday: Mostly cloudy and warm, with a high of 74°F23°C and morning low of 67°F20°C. Breezy from the N at 7 to 8 mph11 to 13 km/h. 70% chance of light rain throughout the day. Humid. Sunday Night: Mostly cloudy, with a low around 66°F19°C. Breezy from the N at 6 to 8 mph10 to 13 km/h. 58% chance of showers throughout the night. |
| MondayAug 3 | Clear | High 78°F26°C | Low 62°F16°C | Precip 0.04 in0.9 mm7% | Cloud 18% | Wind NW 7 mph11 km/h | Monday: Mostly clear and warm, with a high of 78°F26°C and morning low of 64°F18°C. Breezy from the NW at 7 to 8 mph12 to 13 km/h. Monday Night: Mostly clear, with a low around 62°F16°C. Breezy from the NW at 7 to 8 mph11 to 13 km/h. |
| TuesdayAug 4 | Clear | High 83°F29°C | Low 61°F16°C | Precip 0 in0.1 mm1% | Cloud 12% | Wind SW 7 mph11 km/h | Tuesday: Mostly clear and warm, with a high of 83°F29°C and morning low of 65°F19°C. Breezy from the SSW at 7 to 10 mph12 to 15 km/h. Tuesday Night: Mostly clear, with a low around 61°F16°C. Breezy from the SW at 6 to 8 mph10 to 13 km/h. |
15-Day Forecast
| Day | High | Low | Precip | Cloud Cover | Condition | Wind | |
|---|---|---|---|---|---|---|---|
| WednesdayJul 29 | 78°F25°C | 65°F18°C | 0 in0 mm· — | 19% | Clear | NNW 14 mph22 km/h | |
DayMostly clear and warm, with a high of 78°F25°C and morning low of 66°F19°C. Breezy from the NNW at 14 to 15 mph23 to 24 km/h. NightMostly clear, with a low around 65°F18°C. Breezy from the NNW at 13 mph21 km/h. | |||||||
| ThursdayJul 30 | 82°F28°C | 61°F16°C | 0 in0 mm· — | 6% | Clear | NNW 9 mph14 km/h | |
DayMostly clear and warm, with a high of 82°F28°C and morning low of 65°F18°C. Breezy from the NNW at 8 to 10 mph13 to 17 km/h. NightMostly clear, with a low around 61°F16°C. Breezy from the NNW at 9 to 12 mph15 to 19 km/h. | |||||||
| FridayJul 31 | 83°F28°C | 59°F15°C | 0 in0.1 mm· 5% | 49% | Partly Cloudy | WSW 5 mph8 km/h | |
DayPartly cloudy and warm, with a high of 83°F28°C and morning low of 65°F19°C. Breezy from the SSW at 5 to 7 mph8 to 11 km/h. NightMostly cloudy, with a low around 59°F15°C. Light wind from the WNW around 5 mph9 km/h. | |||||||
| SaturdayAug 1 | 79°F26°C | 69°F20°C | 0.1 in2.5 mm· 42% | 96% | Light Rain | NE 4 mph7 km/h | |
DayOvercast and warm, with a high of 79°F26°C and morning low of 70°F21°C. Light wind from the E around 4 mph7 km/h. 35% chance of drizzle throughout the day. Humid. NightOvercast, with a low around 69°F20°C. Light wind from the N around 4 mph7 km/h. 42% chance of light rain throughout the night. | |||||||
| SundayAug 2 | 74°F23°C | 66°F19°C | 0.48 in12.2 mm· 70% | 71% | Light Rain | N 6 mph10 km/h | |
DayMostly cloudy and warm, with a high of 74°F23°C and morning low of 67°F20°C. Breezy from the N at 7 to 8 mph11 to 13 km/h. 70% chance of light rain throughout the day. Humid. NightMostly cloudy, with a low around 66°F19°C. Breezy from the N at 6 to 8 mph10 to 13 km/h. 58% chance of showers throughout the night. | |||||||
| MondayAug 3 | 78°F26°C | 62°F16°C | 0.04 in0.9 mm· 7% | 18% | Clear | NW 7 mph11 km/h | |
DayMostly clear and warm, with a high of 78°F26°C and morning low of 64°F18°C. Breezy from the NW at 7 to 8 mph12 to 13 km/h. NightMostly clear, with a low around 62°F16°C. Breezy from the NW at 7 to 8 mph11 to 13 km/h. | |||||||
| TuesdayAug 4 | 83°F29°C | 61°F16°C | 0 in0.1 mm· 1% | 12% | Clear | SW 7 mph11 km/h | |
DayMostly clear and warm, with a high of 83°F29°C and morning low of 65°F19°C. Breezy from the SSW at 7 to 10 mph12 to 15 km/h. NightMostly clear, with a low around 61°F16°C. Breezy from the SW at 6 to 8 mph10 to 13 km/h. | |||||||
| WednesdayAug 5 | 83°F28°C | 67°F19°C | 0.06 in1.5 mm· 20% | 46% | Drizzle | SW 6 mph10 km/h | |
DayPartly cloudy and warm, with a high of 83°F28°C and morning low of 70°F21°C. Breezy from the SSW at 7 to 8 mph11 to 13 km/h. 20% chance of drizzle in the afternoon. Humid. NightPartly cloudy, with a low around 67°F19°C. Light wind from the SW around 6 mph9 km/h. 19% chance of drizzle in the evening. | |||||||
| ThursdayAug 6 | 80°F27°C | 67°F20°C | 0.11 in2.7 mm· 30% | 57% | Showers | WSW 5 mph9 km/h | |
DayMostly cloudy and warm, with a high of 80°F27°C and morning low of 69°F21°C. Light wind from the SW around 6 mph9 km/h. 30% chance of showers throughout the day. NightMostly cloudy, with a low around 67°F20°C. Light wind from the W around 5 mph8 km/h. 25% chance of drizzle throughout the night. | |||||||
| FridayAug 7 | 80°F27°C | 67°F19°C | 0.16 in4 mm· 27% | 56% | Showers | SW 7 mph11 km/h | |
DayMostly cloudy and warm, with a high of 80°F27°C and morning low of 69°F21°C. Breezy from the SW at 8 to 9 mph12 to 15 km/h. 27% chance of showers throughout the day. NightMostly cloudy, with a low around 67°F19°C. Breezy from the WSW at 6 to 7 mph10 to 11 km/h. 25% chance of drizzle throughout the night. | |||||||
| SaturdayAug 8 | 78°F26°C | 66°F19°C | 0.17 in4.4 mm· 31% | 52% | Showers | W 8 mph12 km/h | |
DayMostly cloudy and warm, with a high of 78°F26°C and morning low of 68°F20°C. Breezy from the WSW at 8 to 9 mph13 to 15 km/h. 31% chance of showers throughout the day. NightPartly cloudy, with a low around 66°F19°C. Breezy from the W at 7 mph11 km/h. 24% chance of showers throughout the night. | |||||||
| SundayAug 9 | 77°F25°C | 64°F18°C | 0.12 in3 mm· 29% | 46% | Showers | W 7 mph11 km/h | |
DayMostly cloudy and warm, with a high of 77°F25°C and morning low of 66°F19°C. Breezy from the W at 7 to 8 mph12 to 13 km/h. 29% chance of showers throughout the day. NightPartly cloudy, with a low around 64°F18°C. Breezy from the WNW at 7 mph11 km/h. 20% chance of drizzle throughout the night. | |||||||
| MondayAug 10 | 76°F25°C | 63°F17°C | 0.08 in2.1 mm· 20% | 45% | Drizzle | WNW 7 mph11 km/h | |
DayMostly cloudy and warm, with a high of 76°F25°C and morning low of 65°F18°C. Breezy from the W at 7 to 8 mph12 to 13 km/h. 20% chance of drizzle throughout the day. NightPartly cloudy, with a low around 63°F17°C. Breezy from the WNW at 7 mph11 km/h. 13% chance of drizzle throughout the night. | |||||||
| TuesdayAug 11 | 75°F24°C | 62°F16°C | 0.11 in2.8 mm· 22% | 42% | Showers | WNW 7 mph11 km/h | |
DayPartly cloudy and warm, with a high of 75°F24°C and morning low of 64°F18°C. Breezy from the WNW at 7 to 8 mph11 to 13 km/h. 22% chance of showers throughout the day. NightPartly cloudy, with a low around 62°F16°C. Light wind from the WNW around 7 mph10 km/h. 20% chance of drizzle throughout the night. | |||||||
| WednesdayAug 12 | 75°F24°C | 61°F16°C | 0.09 in2.4 mm· 25% | 45% | Showers | WNW 7 mph11 km/h | |
DayMostly cloudy and warm, with a high of 75°F24°C and morning low of 64°F18°C. Breezy from the W at 7 to 8 mph12 to 13 km/h. 25% chance of showers throughout the day. NightPartly cloudy, with a low around 61°F16°C. Breezy from the WNW at 7 mph11 km/h. 16% chance of drizzle throughout the night. | |||||||
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Coordinates: 43.8150°N, 79.4242°W·Elevation: 175m·Timezone: America/Toronto·Population: 115,292